import Vue from 'vue'
import Router from 'vue-router'

Vue.use(Router)

/* Layout */
import Layout from '@/layout'
import { getToken } from '@/utils/auth'
import store from '@/store'
const WHITE_LIST = ['/login', '/404']
// 静态路由
export const routes = [
  {
    path: '/login',
    component: () => import('@/views/Login/index'),
    hidden: true
  },
  {
    path: '/cardAdd',
    component: () => import('@/views/Car/CarCard/add-card')
  },
  {
    path: '/enterpriseAdd',
    component: () => import('@/views/Park/Enterprise/add-enterprise')
  },
  {
    path: '/enterpriseDetail',
    component: () => import('@/views/Park/Enterprise/detail')
  },
  {
    path: '/roleAdd',
    component: () => import('@/views/System/Role/add-role')
  },
  {
    path: '/',
    component: Layout,
    redirect: '/workbench'
  },
  {
    path: '/workbench',
    component: Layout,
    children: [{
      path: '',
      component: () => import('@/views/Workbench/index'),
      meta: { title: '工作台', icon: 'el-icon-data-board' }
    }]
  },
  {
    path: '/404',
    component: () => import('@/views/404'),
    hidden: true
  }
]
const createRouter = () => new Router({
  // mode: 'history', // require service support
  mode: 'history',
  scrollBehavior: () => ({ y: 0 }),
  routes: [...routes]
})

const router = createRouter()
// 重置路由方法
export function resetRouter() {
  // 得到一个全新的router实例对象
  const newRouter = createRouter()
  // 使用新的路由记录覆盖掉老的路由记录
  router.matcher = newRouter.matcher
}
// 动态路由
export const asyncRoutes = [
  {
    path: '/park',
    component: Layout,
    permission: 'park',
    meta: { title: '园区管理', icon: 'el-icon-office-building' },
    children: [{
      path: 'building',
      permission: 'park:building',
      meta: { title: '楼宇管理' },
      component: () => import('@/views/Park/Building/index')
    },
    {
      path: 'enterprise',
      permission: 'park:enterprise',
      meta: { title: '企业管理' },
      component: () => import('@/views/Park/Enterprise/index')
    }]
  },
  {
    path: '/parking',
    component: Layout,
    permission: 'parking',
    meta: { title: '行车管理', icon: 'el-icon-guide' },
    children: [{
      path: 'area',
      permission: 'parking:area',
      component: () => import('@/views/Car/CarArea'),
      meta: { title: '区域管理' }
    }, {
      path: 'card',
      permission: 'parking:card',
      component: () => import('@/views/Car/CarCard'),
      meta: { title: '月卡管理' }
    }, {
      path: 'pay',
      permission: 'parking:payment',
      component: () => import('@/views/Car/CarPay'),
      meta: { title: '停车缴费管理' }
    },
    {
      path: 'rule',
      permission: 'parking:rule',
      component: () => import('@/views/Car/CarRule'),
      meta: { title: '计费规则管理' }
    }
    ]
  },
  {
    path: '/pole',
    component: Layout,
    permission: 'pole',
    meta: { title: '一体杆管理', icon: 'el-icon-refrigerator' },
    children: [{
      path: 'info',
      permission: 'pole:info',
      component: () => import('@/views/Rod/RodManage'),
      meta: { title: '一体杆管理' }
    }, {
      path: 'waring',
      permission: 'pole:warning',
      component: () => import('@/views/Rod/RodWarn'),
      meta: { title: '告警记录' }
    }]
  },
  {
    path: '/sys',
    component: Layout,
    permission: 'sys',
    meta: { title: '系统管理', icon: 'el-icon-setting' },
    children: [{
      path: 'role',
      permission: 'sys:role',
      component: () => import('@/views/System/Role/index'),
      meta: { title: '角色管理' }
    }, {
      path: 'user',
      permission: 'sys:user',
      component: () => import('@/views/System/Employee/index'),
      meta: { title: '员工管理' }
    }]
  }
]
// 根据权限标识过滤路由表
function getMenuList(firstRoutePerms, secondRoutePerms, asyncRoutes) {
  // const firstRoutePerms = getFirstRoutePerms(permissions)
  // const secondRoutePerms = getSecondRoutePerms(permissions)
  // 根据一级和二级对动态路由表做过滤 return出去过滤之后的路由表
  // 1. 根据一级路由对动态路由表做过滤
  return asyncRoutes.filter(route => {
    return firstRoutePerms.includes(route.permission)
  }).map(item => {
    // 2. 对二级路由做过滤
    return {
      ...item,
      children: item.children.filter(item => secondRoutePerms.includes(item.permission))
    }
  })
}
// 处理一级路由权限数据
function getFirstRoutePerms(permsArr) {
  const newArr = permsArr.map(item => {
    return item.split(':')[0]
  })
  return [...new Set(newArr)]
}

// 处理二级路由权限数据
function getSecondRoutePerms(permsArr) {
  const newArr = permsArr.map(item => {
    const arr = item.split(':')
    return `${arr[0]}:${arr[1]}`
  })
  return [...new Set(newArr)]
}
router.beforeEach(async(to, from, next) => {
  const token = getToken()
  // 有token
  if (token) {
    if (to.path === '/login') {
      next({ path: '/' })
    } else {
      if (!store.state.user.profile.id) {
        // 1.获取原始权限列表
        const permissions = await store.dispatch('user/getProfile')
        console.log('当前的权限数据为：', permissions)
        const isAdmin = permissions.some(permission => permission === '*:*:*') // 假设'*.*.*:*'表示管理员权限
        console.log('prems', permissions)
        let filterRoutes = []
        if (isAdmin) {
          // 管理员权限
          filterRoutes = asyncRoutes
        } else {
        // 2. 数据处理得到一级二级路由菜单标识
        // const menuPerms = getMenuList(asyncRoutes)
        // console.log(menuPerms)
        // 3.通过菜单权限过滤一级和二级得到权限菜单列表
          const firstRoutePerms = getFirstRoutePerms(permissions)
          const secondRoutePerms = getSecondRoutePerms(permissions)
          filterRoutes = getMenuList(firstRoutePerms, secondRoutePerms, asyncRoutes)
        }
        // 4. addRoute动态添加
        // router.addRoute([...filterRoutes], { path: '*', redirect: '/404', hidden: true })
        // router.addRoute([...filterRoutes])
        filterRoutes.forEach(route => {
          router.addRoute(route) // 不需要整个数组，逐个添加
        })
        // console.log('filterRoutes', filterRoutes)
        // 5.存入Vuex渲染左侧菜单
        store.commit('user/setMenuList', filterRoutes)
        next(to.path)
      } else {
        next()
      }
    }
    // 获取用户信息
  } else {
    // 没有token
    if (WHITE_LIST.includes(to.path)) {
      next()
    } else {
      next('/login')
    }
  }
})

export default router
